| article html file updated | 7 February 2020 19:14 CET | Update | https://www.mdpi.com/2071-1050/8/12/1270 |
| article html file updated | 22 September 2019 09:22 CEST | Update | - |
| article html file updated | 4 May 2019 20:03 CEST | Update | - |
| article html file updated | 28 December 2016 08:14 CET | Update | - |
| article html file updated | 7 December 2016 16:49 CET | Original file | - |
| article xml uploaded. | 7 December 2016 16:48 CET | Update | https://www.mdpi.com/2071-1050/8/12/1270/xml |
| article xml uploaded. | 7 December 2016 16:48 CET | Original file | - |
| article pdf uploaded. | 7 December 2016 16:48 CET | Version of Record | https://www.mdpi.com/2071-1050/8/12/1270/pdf |
